World Population Day 2024 Theme. World mosquito day is celebrated each year on august 20, and in 2024, it falls on a tuesday. Every year, world population day 2024 is observed on july 11 to highlight the global population issues, including population control.

The theme for the day changes annually and is decided by the united nations development program (undp) in coordination with the. World population day is celebrated annually on july 11.